CVE-2021-33203

Django before 2.2.24, 3.x before 3.1.12, and 3.2.x before 3.2.4 has a potential directory traversal via django.contrib.admindocs. Staff members could use the TemplateDetailView view to check the existence of arbitrary files. Additionally, if (and only if) the default admindocs templates have been customized by application developers to also show file contents, then not only the existence but also the file contents would have been exposed. In other words, there is directory traversal outside of the template root directories.

USN-4975-1 — python-django vulnerabilities

Affected: Ubuntu:18.04:LTS: python-django, Ubuntu:20.04:LTS: python-django

It was discovered that the Django URLValidator function incorrectly handled newlines and tabs. A remote attacker could possibly use this issue to perform a header injection attack. This issue only affected Ubuntu 20.04 LTS, Ubuntu 20.10, and Ubuntu 21.04. (CVE-2021-32052)

Rasmus Lerchedahl Petersen and Rasmus Wriedt Larsen discovered that Django incorrectly handled path sanitation in admindocs. A remote attacker could possibly use this issue to determine the existence of arbitrary files and in certain configurations obtain their contents. (CVE-2021-33203)

It was discovered that Django incorrectly handled IPv4 addresses with leading zeros. A remote attacker could possibly use this issue to perform a wide variety of attacks, including bypassing certain access restrictions. (CVE-2021-33571)

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CVE-2021-33203

USN-4975-1 — python-django vulnerabilities